1 歲男童被診斷為泌尿道感染(Urinary tract infection)合併發燒。下列何種檢查對泌尿道感染之評估最不具價值性?
Intravenous pyelography(IVP)
Renal ultrasonography
Voiding cystourethrogram(VCUG)
Renal scintigraphy with technetium-labeled dimercaptosuccinic acid(DMSA)